2. Using the energy of a city to make a
second sun
• The urban area is designed so that the convection current is
centrally focused, providing maximum benefit of airflow.
• The sun and human activities provide the heat which drives
the convection current.
• Sails, flags, and structures are used to create friction and
delay the loss of energy from the area, causing a buildup of
energy.
• Dust, animal waste, food waste, etc. provide combustible
material which accumulates in the air at the center of
convection
• Energy reaches a level which can maintain combustion,
combustion increases energy levels, and when the friction
network is properly operated a fire in the sky is maintained.
3. Benefits of a second sun
• Constant sailing winds
• Cleaner air as a result of combustion cleaning
• Constant, powerful ventilation for maintaining
humidity and air quality.
• Light source (day and night)
• Heat source
• Energy recycling benefits/ long term energy
potential. All energy that is radiated onto the
landscape is added to the system. (clouds might
ring the system and collect radiation)
4. Sail rings create friction and slow the loss of energy
from the urban area, a certain energy level is reached
through steady introduction via human activities and
solar radiation which initiates a combustion chain
reaction.
5. Some logic
Sails and animal power were once
commonplace and primary. Animals and poor
humans produce animal waste which is a
continuous epic problem and dramatically limits
population density. It would not go un-noticed if
there were air-flow or not. A well ventilated city
would be much more desirable than a poorly
ventilated city. Lower death and illness rates
would mean increased economic potential.
6. Logic continued
Under the circumstance that a technology
is improving the economy, it is usually
developed and explored in great detail. If sails in
certain places increased airflow in other places,
then it is likely the practice of using sails fixed in
the urban environment would be commonplace,
due to the benefits to ventilation. Food waste,
feces, the dead, etc. would be in need of
ventilation. In a dense urban area, it is not
always possible to keep waste away from others.
7. Some thought points to add.
• Animals and poor people shit in the street.
• Humidity breaks down the foundations of
buildings and roads.
• Miasma
• People without modern windows and air-
conditioning are much more in-tune to airflow
and temperature changes outside.
• Disease was widely feared, and people would
make unwise financial decisions in the face of
disease.
